Mathematics, 23.01.2020 00:31, anika420

Tran says that -1/4×-7+9/4×+2× is equivalent to 4×-7. how can substituting any value for × you determine whether tran is correct ? is tran correct ? use substituion to justify your answer

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Tran says that -1/4×-7+9/4×+2× is equivalent to 4×-7. how can substituting any value for × you dete...

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